13 Retinal Projections Flashcards Preview

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Flashcards in 13 Retinal Projections Deck (24)
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1
Q

Slide 2

There are ____ synaptic layers of vision.

A

6

2
Q

Slide 2

True/False. The 6 synaptic layers of vision start with photoreceptors in the retina and ends with cortex.

A

True.

3
Q

Slide 3:

Retina projection to over ___ different areas.

A

20

4
Q

Slide 4:

Suprachiasmatic nucleus is located in the ____ and modulates the ____.

A

hypothalamus, circadian rhythm.

5
Q

Slide 5:

Accessory optic system contains ____ nucleus.

A

3.

6
Q

Slide 5:

True/ False: Accessory optic system contains 3 nucleus: medial terminal nucleus, lateral terminal nucleus, and dorsal terminal nucleus.

A

True.

7
Q

Slide 6:

True/False: Inferior colliculus synchronizes visual and auditory signals.

A

False. ( superior colliculus).

8
Q

Slide 8:

The left colliculus projects unto ____ side of the left retina and the ___ side of the right retina.

A

temporal, nasal.

9
Q

Slide 9:

Superior colliculus retinal field projections reflect ___ density.

A

cell.

10
Q

Slide 11:

A person with blind sight is able to see shape and contrast boarders due to which structure in the brain?

A

Superior colliculus.

11
Q

Slide 12:

True/False: Pretectum provides feedback to allow for constriction or dilation of the pupil.

A

True.

12
Q

Slide 13:

Pregeniculate connects to the ____.

A

SCN.

13
Q

Slide 13:

Pregeniculate may set the phase of the ____.

A

Circadian rhythm.

14
Q

Slide 14:

True/False: Lateral geniculate nucleus receives unilateral projections.

A

False ( bilateral).

15
Q

Slide 14:

Of the 6 layers of the LGN: 4 are ___ layers and 2 are ____ layers.

A

parvocellular, magnocellular.

16
Q

Slide 15:

Layers between the magno and parvocellular layers of the LGN are called the __ layers.

A

K.

17
Q

Slide 15:

True/False: Parvocellular cells sends signals faster to the cortex thus the first thing your cortex sees.

A

False. ( magnocellular cells).

18
Q

Slide 16:

LGN has how many layers?

A

12.

19
Q

Slide 17:

___ ganglion cells projects to the parvocellular layers of the LGN.

A

Midget.

20
Q

Slide 17:

Midget ganglion cells go up to which layer in the striate cortex?

A

4C beta.

21
Q

Slide 18:

Parasol ganglion cells projects to ___ layer of the LGN.

A

Magnocellular.

22
Q

Slide 18:

Parasol ganglion cells go up to which in the striate cortex?

A

4C alpha.

23
Q

Slide 19:

Small bistratified cells projects to ___ layer of the LGN.

A

koniocellular

24
Q

Slide 20:

At least ___ types of ganglion cells project to the LGN.

A

12.